# `rfsearch.pl` notes Families which require special `rfsearch.pl` flags: | accession | recommended command | reason | | --------- | -------------------------------- | ------ | | RF00017 | `rfsearch.pl -ignoresm -cut_ga` | too many hits otherwise, and it takes more than 1 week | | RF02543 | `rfsearch.pl -cgtailn 200` | allows calibration to finish successfully, otherwise you get this error 'Error: --gtailn =250 cannot be used, there's only 215.000 hits per Mb in the histogram! Lower or use --tailp.' | --- Possible `rfsearch.pl` error: ``` ERROR unable to fetch description for JZJH011 at /homes/nawrocki/git/Rfam/rfam-family-pipeline/Rfam/Lib/Bio/Rfam/FamilyIO.pm line 2070, line 48. ``` If you see an error like this: rerun with `-scpu 0`. This error is due to a bug in infernal 1.1.4 (actually in easel) that was fixed in commit 8d300ef, so should be fixed in next release of infernal. https://github.com/EddyRivasLab/easel/pull/66/commits/8d300ef3899f69365be02635416333d0f30ccbe9